<template>
  <div>
    <!-- 面包屑区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            clearable
            v-model="queryInfo.query"
            v-on:keyup.13.native="getGoodsList"
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <!-- 点击添加商品的时候，就会跳转到零一个地址 -->
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>
      <el-row>
        <!-- 表格区域 -->
        <el-table :data="goodsList" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column label="商品名称" prop="goods_name"></el-table-column>
          <el-table-column
            label="商品价格(元)"
            prop="goods_price"
            width="95px"
          ></el-table-column>
          <el-table-column
            label="商品重量"
            prop="goods_weight"
            width="70px"
          ></el-table-column>
          <el-table-column width="140px" label="创建时间" prop="add_time">
            <template slot-scope="scope">
              {{ scope.row.add_time | dateFormat }}
            </template>
          </el-table-column>
          <el-table-column label="操作" width="130px">
            <template slot-scope="scope">
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
              ></el-button>
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="deleteGoods(scope.row)"
              ></el-button>
            </template>
          </el-table-column>
        </el-table>
        <!-- 分页区域 -->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[5, 10, 15, 20]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          background
        >
        </el-pagination>
      </el-row>
    </el-card>
  </div>
</template>
<style lang="less" scoped>
.el-table {
  margin-bottom: 20px;
}
</style>
<script>
export default {
  created() {
    this.getGoodsList()
  },
  data() {
    return {
      // 商品列表数据  查询对象
      queryInfo: {
        // 查询参数
        query: '',
        // 当前页码
        pagenum: 1,
        // 每一条显示的条数
        pagesize: 10,
      },
      //   商品列表数据
      goodsList: [],
      total: 0,
    }
  },
  methods: {
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表失败')
      }
      this.$message.success('获取商品列表成功！')
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newsize) {
      this.queryInfo.pagesize = newsize
      this.getGoodsList()
    },
    handleCurrentChange(newpage) {
      this.queryInfo.pagenum = newpage
      this.getGoodsList()
    },
    // 删除 商品的 按钮
    async deleteGoods(row) {
      const removeRolesByidResult = await this.$confirm(
        '此操作将永久删除该商品, 是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((err) => err)
      // 如果用户确认删除，则返回值为字符串 confirm
      // 如果用户取消删除，则返回值为字符串 cancel
      if (removeRolesByidResult != 'confirm') {
        return this.$message.info('已经取消删除')
      }
      const { data: res } = await this.$http.delete(`goods/${row.goods_id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除商品失败')
      }
      this.$message.success('删除商品成功！')
      this.getGoodsList()
    },
    goAddpage() {
      this.$router.push('/goods/add')
    },
  },
}
</script>